• 한국콘텐츠학회논문지
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• 제16권1호
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• pp.214-229
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• 2016

금융위기 이후 경제성장의 정체, 친환경 트렌드의 부상, 스마트폰의 대중화를 배경으로 등장한 공유경제는 불필요한 소비를 줄이고 자원 활용도를 높여 초연결 시대, 소비자 효용 증대 측면에서 주목받고 있다. 따라서 본 연구는 공유경제 서비스의 성공을 서비스 수용 후 지속적 사용으로 규정하고 서비스 이용 경험에서 지속 이용에 영향을 미치는 요인과 그 요인 간 인과적 관계를 실증적으로 검증하였다. 연구결과, 지각된 가치와 네트워크 외부성은 신뢰 및 만족에 모두 유의한 영향을 미치고, 지각된 위험은 신뢰에 유의한 영향을 미치는 것으로 나타났다. 또한 신뢰는 만족과 지속이용의도에 모두 유의한 영향을 미치고, 만족 또한 지속이용의도에 유의한 영향을 미치는 것으로 나타났다. 그리고 지각된 가치와 위험, 그리고 네트워크 외부성은 신뢰와 만족을 매개하여 지속이용의도에 유의한 영향을 미치는 것으로 나타났다. 본 연구를 통하여 최근 그 중요성이 강조되고 있는 공유경제 서비스의 성공 요인과 요인 간 구조적 관계를 확인함으로써 불확실한 경영환경 속에서 공유경제 서비스의 경쟁력을 제고 할 수 있는 계기를 제공하고자 한다.

• 기술혁신연구
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• 제13권1호
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• pp.113-139
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• 2005

The purpose of this study is to analyse the diffusion process of personal computer (PC) in Korea during the 1990's. To achieve the goal, five research steps have been done such as the literature survey of diffusion theory, set-up of theoretic equilibrium model of supply and demand, derivation of an equilibrium path using Hamiltonian, and empirical analysis. The empirical analysis has been performed based on that equilibrium path. The results can be summarized as follows : First, technological attribute of diffusing product influences the diffusion speed of Product. It has been proven that the size of the network has a significant effect on the diffusion of PC in empirical study Second, supply factors have an important role in the diffusion process. According to the empirical analysis, decreasing cost of production as a result of technological advance promotes the speed of diffusion. This point seems to be manifest theoretically, but existing empirical models have not included supply factors explicitly, Third, it has been found out that expectation of decreasing cost would influence the speed of diffusion negatively as expected ex ante. Theoretically this result is supported by arbitrage condition of purchasing timing.

• East Asian Economic Review
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• 제20권2호
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• pp.229-275
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• 2016

We study the effect of the high-skilled emigration rate on the growth rate of the source countries. We incorporate the foreign direct investment and the policy variables into the panel model and also their interactions with the high-skilled emigration rate, as they are related to the network externality that may be created by the high-skilled emigrants working abroad. We apply the static fixed-effects model and compare it with the results obtained in the dynamic panel model with system generalized methods of moments estimators. We find the negative effect of the high-skilled emigration rate by itself and in its interaction with the foreign direct investment only in the dynamic model. However, we find positive coefficient for the interaction of the high-skilled emigration rate and the civil liberties index, which holds across the static and dynamic specifications. This implies that the effect of the high-skilled emigration rate on the growth rate of the source countries can be positive, and the extent is larger for countries with 'poor' civil liberties. The developing countries with low levels of foreign direct investment inflows and 'poor' civil liberties can best benefit from the high levels of skilled emigration outward. Through finding significant interactions with other variables, we confirm that the high-skilled emigration should be considered along with other related variables in measuring its impact on growth. The implications offer suggestions for the international trade and aid policies.

• 전기학회논문지P
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• 제61권2호
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• pp.74-81
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• 2012

The purpose of this study provides the theoretical model for protecting the economic and social loss from the current alternative fuel vehicle which is developed without compatibility and senseless one's own through verifying the statistical significant by method of measuring analysis. The market scale of alternative fuel vehicle depends on customer's and station's expectation about the number of potential vehicle users. It is very difficult for vehicle manufacturer to make a decision on the standard alternative fuel vehicle as it might reduce profit and market share. Accordingly, the development of alternative fuel vehicle should have manufacturer confident on the potential profit in the future. Moreover, if we decide to use the non-standard fuel after we started to use the standard fuel, it would take a huge cost comparing with starting to use the standard fuel only. As a result, once one of companies starts to provide the non-standard fuel service, it is getting more difficult to use the standard fuel going forward. Consequently, we may review the possibility of choice on the standard fuel before the vehicle manufacturer starts service with non-standard fuel.

• 해양환경안전학회지
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• 제14권4호
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• pp.275-287
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• 2008

소음의 외부효과는 현대사회에서 흔히 발견되는 문제라고 할 수 있다. 소음은 재산적 피해와 같은 외부효과를 발생시키며, 따라서 소음으로 인한 재산피해를 평가하고 효과적 해결책을 찾아내는 연구는 매우 중요하다고 할 수 있다. 분석결과는 통계적 유의성이 있으며, 소음이 재산적 가치에 부정적 효과가 있음을 보여 주고 있다. 모형의 주요 결과로는 소음 단위(데시빌)당 피해액이 추정(5,000 달러${\ast}$로그(dB))되었고, 추정된 소음피해함수(잠재가격함수)는 소음의 한계효과가 감소함을 나타내고 있다.

• ETRI Journal
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• 제27권2호
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• pp.206-218
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• 2005

We measure and compare externalities of IT and R&D capital stocks in different Korean industry sectors using inter-industry input-output tables of 1985, 1990, 1995 and 2000. We also compute the multiplier effects that relate to the directions of future economic effects. The key findings are as follows. First, we observed continuous capital deepening in all nine industries over the period of 1985 to 2000. Second, the backward multipliers of IT capital were the highest in the manufacturing industry. As for inter-industry externalities, the indirect backward multipliers, which exclude intra-industry backward multiplier effects within the industry, were also the highest in the manufacturing industry. Third, the forward multiplier effects of IT capital stock were the most substantial in the construction industry during the 1980s and in the manufacturing industry thereafter. Finally, using the transition multiplier matrix reflecting the backward effects of the two capitals in the past, the economic backward effects, especially the external economic effects, are predicted to increase through 2010 among all industries. The above findings suggest that, in order to maximize the forward and backward effects of the ever-increasing IT capital, we need to formulate an industry policy reducing the cost of capital accumulation in the manufacturing industry through improvement in productivity of the IT industry.

• Asia pacific journal of information systems
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• 제26권1호
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• pp.41-65
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• 2016

What prevails in the today's research on social media is a functional view of technology. Technology is regarded as a set of technical devices used to conduct specific social functions, such as personal communication, social networking, public posting, and corporate advertising, among others. This paper proposes that such a functional view of technology renders social media research unduly limited and constrained in its scope, level, and direction of inquiry. Problematizing on some representative social media research efforts in the field of IS, this paper provides an alternative perspective, that is, to view social media as a technology-for-being that exerts a deeper level of influence on our existence, molding and shaping the nature and mode of being itself. Such a technology-for-being perspective has been rarely explored or subscribed to in the present IS social media research. Building upon the new conception of social media as a technology-for-being, this essay explores the quality of being in the context of social media. Five such qualities are discussed, including virtuality, materiality, externality, liquidity, and hybridity. The essay also explores the deep structural problems of research to guide future social media research. Six of such problems include Problematize-the-Natural, Follow-the-Actor, Welcome-the-Frankenstein, Weber-meets-Frankenstein, Freud-meets-Frankenstein, and Marx-meets-Frankenstein. The essay concludes with discussions on the implications of the essay, its limitations, and suggestions for future work.

• 한국통신학회논문지
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• 제31권1B호
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• pp.56-70
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• 2006

본 연구는 최근 IP 주소부족 문제와 더불어 새롭게 도입이 추진되고 있는 IPv6의 경제적 가치를 분석하고자 한다. 일반적으로 IPv6과 같은 플랫폼형태의 신기술은 직접적인 효과보다는 간접적인 효과로 나타나기 때문에 경제적 가치를 정확히 산정하는 것은 매우 불확실하고, 어려운 일이다. 따라서 본 연구에서는 IPv6의 경제적 가치를 정확하고, 엄밀하게 측정하기 보다는, 여러 관점에서 다양한 방법을 적용하여 탐색적인 분석을 시도 하였다. 이를 위해 관련 이해관계 당사자별 손익을 고려한 IPv6 경제적 가치 평가 모형을 개발하고, 국내 인터넷 시장자료와 전문가 예측자료와 같은 정성적 자료와 정량적 자료를 동시에 활용하여 경제적 가치를 산정하였다. 마지막으로, 경제적 가치 산정 결과의 정책적 시사점과 연구의 한계점을 제시하였다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2002년도 춘계종합학술대회
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• pp.425-428
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• 2002

본 연구에서는 무선 인터넷 시장의 네트워크 외부성을 크게 커뮤니케이션 네트워크 외부성과 하드웨어/소프트웨어 네트워크 외부성으로 나누어 고찰하므로, 무선 인터넷 시장의 경쟁 구도 형성 과정을 이해하고 예측해보고자 한다. 본 연구는 우선 무선 인터넷 시장을 크게 이동망 중심의 모바일 인터넷과 무선랜 중심의 초고속무선 인터넷으로 구분한다. 모바일 네트워크의 경우, 음성과 SMS를 이용한 커뮤니케이션의 기능을 기본으로 하며 핸드폰을 기반으로 무선인터넷을 구현한다. 무선랜을 이용한 고속무선 인터넷의 경우, 음성보다는 데이터 전송을 기본으로 하며 입력과 디스플레이에 용이한 노트북, PDA 등의 다양한 단말을 통해 인터넷을 구현한다. 이 두 서비스간의 경쟁에서 나타난 네트워크 외부성은 서비스의 성공 여부를 가름할 수 있는 중요한 요인으로 이를 위해 사업자간 전략적 협력이 필요하다.

• Asian Journal of Innovation and Policy
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• 제10권2호
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• pp.212-235
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• 2021

In spite of the increasing popularity of the Ricardian model for the study of the impact of climate change on agriculture, there has been few attempts to examine the role of interregional spillovers in this framework and all of them rely on geographical proximity-based weighting schemes. We remedy to this gap by focusing on the spatial externalities of surface water flow used for irrigation purposes and demonstrate that farmland value, the usual dependent variable used in the Ricardian framework, is a function of the climate variables experienced locally and in the upstream locations. This novel approach is tested empirically on a spatial panel model estimated across the counties of the Southwest USA over 1997-2012. This region is one of the driest in the country, hence its agriculture relies heavily on irrigated surface water. The results highlight how the weather conditions in upstream counties significantly affect downstream agriculture, thus the actual impact of climate change on agriculture and subsequent adaptation policies cannot overlook the streamflow network anymore.